| #ifndef GraphicsJNI_DEFINED |
| #define GraphicsJNI_DEFINED |
| |
| #include "SkPoint.h" |
| #include "SkRect.h" |
| #include "SkBitmap.h" |
| #include <jni.h> |
| |
| class SkCanvas; |
| class SkPaint; |
| class SkPicture; |
| |
| class GraphicsJNI { |
| public: |
| // returns true if an exception is set (and dumps it out to the Log) |
| static bool hasException(JNIEnv*); |
| |
| static void get_jrect(JNIEnv*, jobject jrect, int* L, int* T, int* R, int* B); |
| static void set_jrect(JNIEnv*, jobject jrect, int L, int T, int R, int B); |
| |
| static SkIRect* jrect_to_irect(JNIEnv*, jobject jrect, SkIRect*); |
| static void irect_to_jrect(const SkIRect&, JNIEnv*, jobject jrect); |
| |
| static SkRect* jrectf_to_rect(JNIEnv*, jobject jrectf, SkRect*); |
| static SkRect* jrect_to_rect(JNIEnv*, jobject jrect, SkRect*); |
| static void rect_to_jrectf(const SkRect&, JNIEnv*, jobject jrectf); |
| |
| static void set_jpoint(JNIEnv*, jobject jrect, int x, int y); |
| |
| static SkIPoint* jpoint_to_ipoint(JNIEnv*, jobject jpoint, SkIPoint* point); |
| static void ipoint_to_jpoint(const SkIPoint& point, JNIEnv*, jobject jpoint); |
| |
| static SkPoint* jpointf_to_point(JNIEnv*, jobject jpointf, SkPoint* point); |
| static void point_to_jpointf(const SkPoint& point, JNIEnv*, jobject jpointf); |
| |
| static SkCanvas* getNativeCanvas(JNIEnv*, jobject canvas); |
| static SkPaint* getNativePaint(JNIEnv*, jobject paint); |
| static SkBitmap* getNativeBitmap(JNIEnv*, jobject bitmap); |
| static SkPicture* getNativePicture(JNIEnv*, jobject picture); |
| static SkRegion* getNativeRegion(JNIEnv*, jobject region); |
| static SkScalar getCanvasDensityScale(JNIEnv*, jobject canvas); |
| |
| /** Return the corresponding native config from the java Config enum, |
| or kNo_Config if the java object is null. |
| */ |
| static SkBitmap::Config getNativeBitmapConfig(JNIEnv*, jobject jconfig); |
| |
| /** Create a java Bitmap object given the native bitmap (required) and optional |
| storage array (may be null). If storage is specified, then it must already be |
| locked, and its native address set as the bitmap's pixels. If storage is null, |
| then the bitmap must be an owner of its natively allocated pixels (via allocPixels). |
| */ |
| static jobject createBitmap(JNIEnv* env, SkBitmap* bitmap, bool isMutable, |
| jbyteArray ninePatch); |
| |
| static jobject createRegion(JNIEnv* env, SkRegion* region); |
| |
| /** Set a pixelref for the bitmap (needs setConfig to already be called) |
| Returns true on success. If it returns false, then it failed, and the |
| appropriate exception will have been raised. |
| */ |
| static bool setJavaPixelRef(JNIEnv*, SkBitmap*, SkColorTable* ctable); |
| |
| /** Copy the colors in colors[] to the bitmap, convert to the correct |
| format along the way. |
| */ |
| static bool SetPixels(JNIEnv* env, jintArray colors, int srcOffset, |
| int srcStride, int x, int y, int width, int height, |
| const SkBitmap& dstBitmap); |
| }; |
| |
| class JavaPixelAllocator : public SkBitmap::Allocator { |
| public: |
| JavaPixelAllocator(JNIEnv* env); |
| // overrides |
| virtual bool allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable); |
| |
| private: |
| JNIEnv* fEnv; |
| }; |
| |
| class AutoJavaFloatArray { |
| public: |
| AutoJavaFloatArray(JNIEnv* env, jfloatArray array, int minLength = 0); |
| ~AutoJavaFloatArray(); |
| |
| float* ptr() const { return fPtr; } |
| int length() const { return fLen; } |
| |
| private: |
| JNIEnv* fEnv; |
| jfloatArray fArray; |
| float* fPtr; |
| int fLen; |
| }; |
| |
| class AutoJavaIntArray { |
| public: |
| AutoJavaIntArray(JNIEnv* env, jintArray array, int minLength = 0); |
| ~AutoJavaIntArray(); |
| |
| jint* ptr() const { return fPtr; } |
| int length() const { return fLen; } |
| |
| private: |
| JNIEnv* fEnv; |
| jintArray fArray; |
| jint* fPtr; |
| int fLen; |
| }; |
| |
| class AutoJavaShortArray { |
| public: |
| AutoJavaShortArray(JNIEnv* env, jshortArray array, int minLength = 0); |
| ~AutoJavaShortArray(); |
| |
| jshort* ptr() const { return fPtr; } |
| int length() const { return fLen; } |
| |
| private: |
| JNIEnv* fEnv; |
| jshortArray fArray; |
| jshort* fPtr; |
| int fLen; |
| }; |
| |
| class AutoJavaByteArray { |
| public: |
| AutoJavaByteArray(JNIEnv* env, jbyteArray array, int minLength = 0); |
| ~AutoJavaByteArray(); |
| |
| jbyte* ptr() const { return fPtr; } |
| int length() const { return fLen; } |
| |
| private: |
| JNIEnv* fEnv; |
| jbyteArray fArray; |
| jbyte* fPtr; |
| int fLen; |
| }; |
| |
| void doThrow(JNIEnv* env, const char* exc, const char* msg = NULL); |
| void doThrowNPE(JNIEnv* env); |
| void doThrowAIOOBE(JNIEnv* env); // Array Index Out Of Bounds Exception |
| void doThrowIAE(JNIEnv* env, const char* msg = NULL); // Illegal Argument |
| void doThrowRE(JNIEnv* env, const char* msg = NULL); // Runtime |
| void doThrowISE(JNIEnv* env, const char* msg = NULL); // Illegal State |
| void doThrowOOME(JNIEnv* env, const char* msg = NULL); // Out of memory |
| |
| #define NPE_CHECK_RETURN_ZERO(env, object) \ |
| do { if (NULL == (object)) { doThrowNPE(env); return 0; } } while (0) |
| |
| #define NPE_CHECK_RETURN_VOID(env, object) \ |
| do { if (NULL == (object)) { doThrowNPE(env); return; } } while (0) |
| |
| #endif |
| |